Magnetic clamping jig

Abstract

The utility model discloses a magnetic suction clamping jig, which relates to the technical field of electronic device processing and specifically structurally comprises an upper clamp, a lower clamp, a lower clamp and a magnetic suction device. The upper positioning units are arranged in the upper clamp at intervals; the plurality of first mounting holes are respectively formed in the upper clamp and the upper positioning unit; the first magnetic attraction blocks are mounted in the first mounting holes in a one-to-one correspondence manner; the lower clamp is in a frame shape, and the lower clamp corresponds to the upper clamp; the lower positioning units are mounted in the lower clamp at intervals, and the lower positioning units correspond to the upper positioning units; the plurality of second mounting holes are respectively formed in the lower clamp and the lower positioning unit; and the second magnetic attraction blocks are mounted in the second mounting holes in a one-to-one correspondence manner. According to the utility model, the technical problem that the quality of a product to be plastically packaged is poor due to insufficient clamping force when the existing electronic product is plastically packaged and clamped is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic device processing, in particular to a magnetic suction clamping fixture. Background Art

[0002] At present, the plastic encapsulation of frame rectifier bridge semiconductor products is generally divided into the following steps: preheating the plastic encapsulation mold of the press, preheating the preheating table, placing the mold frame on the preheating table, placing the frame sheet on the mold frame, preheating the glue cake, placing the entire mold frame on the plastic encapsulation mold, closing the mold with the press, adding the preheated glue cake, transferring and injecting the plastic encapsulation material, waiting for curing, opening the mold, and removing the ribs.

[0003] During the use of the plastic encapsulation mold frame (i.e., the jig), the force applied to the upper and lower clamps is not uniform when they are combined, and the pressure is small when they are combined, causing part of the frame to tilt, which affects the subsequent plastic encapsulation effect and the quality of the product. Utility Model Content

[0004] The utility model aims to provide a magnetic suction clamping fixture, which solves the technical problem in the prior art that the quality of the electronic products to be plastic-sealed is poor due to insufficient clamping force during plastic-sealing clamping.

[0005] The present application discloses a magnetic clamping fixture, comprising:

[0006] An upper fixture, wherein the upper fixture is frame-shaped;

[0007] A plurality of upper positioning units are arranged at intervals inside the upper fixture;

[0008] A plurality of first mounting holes are respectively provided on the upper fixture and the upper positioning unit;

[0009] A plurality of first magnetic blocks are installed in the first mounting holes in a one-to-one correspondence, and the bottom surfaces of the first magnetic blocks are in the same plane as the bottom surfaces of the upper clamp and the upper positioning unit;

[0010] A lower clamp, the lower clamp is frame-shaped and corresponds to the upper clamp;

[0011] A plurality of lower positioning units are installed at intervals inside the lower fixture, and the lower positioning units correspond to the upper positioning units;

[0012] A plurality of second mounting holes are respectively formed on the lower fixture and the lower positioning unit;

[0013] A plurality of second magnetic blocks are installed in the second mounting holes in a one-to-one correspondence, and the top surfaces of the second magnetic blocks are in the same plane as the top surfaces of the lower clamp and the lower positioning unit.

[0014] The present application provides magnetic blocks on the upper clamp, upper positioning unit, lower clamp and lower positioning unit to increase the clamping force of the upper clamp and the lower clamp, ensure that the product to be plastic-sealed can be in a horizontal position, thereby improving the quality of the product.

[0015] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0016] Furthermore, the upper positioning unit comprises:

[0017] A plurality of upper positioning bars, each of which is provided with a plurality of positioning holes spaced apart along its length, wherein the positioning holes are grouped in pairs;

[0018] Multiple upper pressure strips are respectively located on both sides of the upper positioning strip, the upper pressure strips are grouped in pairs, and each group of the upper pressure strips corresponds to a group of the positioning holes. The beneficial effect of adopting this step is that the upper positioning strip and the upper pressure strip cooperate with the subsequent lower positioning unit to complete the clamping action.

[0019] Furthermore, the center line of the upper pressure strip corresponds to the center of the positioning hole.

[0020] Furthermore, the lower positioning unit comprises:

[0021] A plurality of lower positioning plates are installed at intervals inside the lower fixture, and a groove is provided inside the lower positioning plates;

[0022] A plurality of lower positioning bars are installed at intervals inside the lower fixture, and the lower positioning plate is located between two lower positioning plates;

[0023] A plurality of positioning seats are installed at intervals on the lower positioning strip, and the positioning seats correspond to the positioning holes. The beneficial effect of adopting this step is that the clamping of the product is completed by the cooperation between various components and the upper positioning unit.

[0024] Furthermore, handles are provided on the outer sides of the upper clamp and the lower clamp.

[0025] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0026] 1. The present application adds a first magnetic block and a second magnetic block to complete adsorption, increase the clamping force of the upper clamp and the lower clamp, and ensure that the product is in a horizontal position after clamping, thereby improving the quality of plastic sealing.

[0027] 2. This application designs the upper positioning unit and the lower positioning unit to facilitate the stable clamping of subsequent products. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a structural schematic diagram of a magnetic clamping fixture according to a specific embodiment of the utility model;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the upper fixture part;

[0031] Figure 3 for Figure 1 A schematic diagram of the structure of the lower fixture part;

[0032] The specific reference numerals are as follows:

[0033] 1-upper fixture; 2-upper positioning unit; 3-first mounting hole; 4-first magnetic block; 5-lower fixture; 6-lower positioning unit; 7-second mounting hole; 8-second magnetic block; 9-handle;

[0034] 201-upper positioning strip; 202-positioning hole; 203-upper pressing strip;

[0035] 601-lower positioning plate; 602-groove; 603-lower positioning strip; 604-positioning seat. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0037] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] Example:

[0041] like Figure 1-3 As shown, an embodiment of the present application discloses a magnetic clamping jig for subsequent plastic sealing. Compared with the existing clamping jig, by providing an embedded magnetic block, the pressure between the two molds can be increased to ensure that the clamped product can be in a horizontal state, thereby ensuring the quality of the product.

[0042] The specific structure of this application includes:

[0043] The upper clamp 1 is frame-shaped, that is, a square control area is provided in the middle of the upper clamp 1 to facilitate subsequent clamping of corresponding products;

[0044] A plurality of upper positioning units 2 are arranged at intervals inside the upper clamp 1, and the upper positioning units 2 are subsequently used to clamp corresponding products for subsequent plastic sealing;

[0045] A plurality of first mounting holes 3 are respectively provided on the upper fixture 1 and the upper positioning unit 2. The first mounting holes 3 are used as embedded holes for installing the corresponding first magnetic blocks, that is, an embedded assembly form is adopted to prevent the first magnetic blocks from affecting the merging and clamping of the upper fixture and the lower fixture;

[0046] A plurality of first magnetic blocks 4 are installed inside the first mounting holes 3 in a one-to-one correspondence, and the bottom surfaces of the first magnetic blocks 4 are in the same plane as the bottom surfaces of the upper fixture 1 and the upper positioning unit 2; the first mounting holes 3 in the present application are opened on the lower surface of the upper fixture 1, and after the first magnetic blocks 4 are assembled, when assembled with the lower fixture, the lower fixture can be adsorbed to ensure that the upper fixture and the lower fixture can fit tightly;

[0047] A lower fixture 5, wherein the lower fixture 5 is frame-shaped and corresponds to the upper fixture 1, that is, the shape of the lower fixture 5 is substantially the same as the shape of the upper fixture 1, so that the lower fixture 5 and the upper fixture 1 can be stably assembled;

[0048] A plurality of lower positioning units 6 are installed at intervals inside the lower clamp 5, and the lower positioning units 6 correspond to the upper positioning units 2. When the upper clamp 1 and the lower clamp 5 are combined, the product is clamped, which is convenient for subsequent plastic sealing of the product.

[0049] A plurality of second mounting holes 7 are respectively provided on the lower fixture 5 and the lower positioning unit 6; the second mounting holes 7 in the present application are used to assemble the subsequent second magnetic block. Specifically, the position of the second mounting hole 7 corresponds to the position of the first mounting hole 3, so that the subsequent second magnetic block and the first magnetic block can also correspond to each other to complete the assembly;

[0050] A plurality of second magnetic blocks 8 are installed one by one inside the second mounting hole 7, and the top surface of the second magnetic block 8 is in the same plane as the top surface of the lower clamp 5 and the top surface of the lower positioning unit 6. The side of the second magnetic block 8 corresponding to the first magnetic block 4 has different magnetic properties, which can ensure that the upper clamp 1 and the lower clamp 5 can attract each other to complete the adsorption.

[0051] The following is a description of the specific structure of the upper positioning unit 2 in the present application. The upper positioning unit 2 may be an existing positioning unit or may be the following structure, including:

[0052] A plurality of upper positioning strips 201, each of which is provided with a plurality of positioning holes 202 spaced apart along its length direction, and each of the positioning holes 202 is grouped in pairs; the upper positioning strips 201 are preferably square, which is convenient for subsequent clamping and positioning, and can be plastic-sealed when products are placed in other areas later;

[0053] Multiple upper pressing strips 203 are respectively located on both sides of the upper positioning strip 201. The upper pressing strips 203 are grouped in pairs, and each group of the upper pressing strips 203 corresponds to a group of the positioning holes 202. The upper pressing strips 203 in the present application are used to press the outer edge of the product. It is necessary to ensure that the product is in a horizontal position after pressing and clamping, so as to ensure the plastic sealing effect.

[0054] Specifically, the center line of the upper pressure strip 203 corresponds to the center of the positioning hole 202, that is, the center line of the upper pressure strip 203 passes through the center of the positioning hole 202, so as to ensure that the product can be clamped during subsequent assembly and positioning.

[0055] The following is a design of the lower positioning unit of the present application, wherein the lower positioning unit 6 can be an existing positioning unit or can be the following structure, which cooperates with the upper positioning unit 2 to complete the clamping, and the lower positioning unit 6 includes:

[0056] A plurality of lower positioning plates 601 are installed at intervals inside the lower fixture 5, and a groove 602 is provided inside the lower positioning plate 601. A glue inlet hole is provided inside the groove 602 to facilitate the entry of the plastic sealant, and the inside of the groove 602 corresponds to the part of the product to be plastic-sealed, so as to facilitate the subsequent correspondence with the plastic-sealing mold to complete the plastic-sealing operation;

[0057] A plurality of lower positioning bars 603 are installed at intervals inside the lower clamp 5, and the lower positioning plate 601 is located between two lower positioning plates 601. Specifically, the lower positioning bar 603 is provided with the second mounting hole 7, which cooperates with the upper positioning bar 201 to complete the clamping of the upper clamp 1 and the lower clamp 5, thereby ensuring that the product can be clamped stably, and the clamping is improved by cooperating with the magnetic suction block, so that the product is in a horizontal state after being clamped;

[0058] A plurality of positioning seats 604 are installed at intervals on the lower positioning strip 603, and the positioning seats 604 correspond to the positioning holes 202; the positioning seats 604 in the present application are embedded in the assembly, which is convenient for the subsequent assembly of the upper clamp and the lower clamp; at the same time, the positioning seats 604 cooperate with the subsequent positioning holes 202 for further positioning and locking.

[0059] Specifically, handles 9 are provided on the outer sides of the upper clamp 1 and the lower clamp 5, and the upper clamp and the lower clamp can be taken out through the handles 9, which is conducive to improving work efficiency.

[0060] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A magnetic clamping fixture, characterized in that: include: An upper fixture, wherein the upper fixture is frame-shaped; A plurality of upper positioning units are arranged at intervals inside the upper fixture; A plurality of first mounting holes are respectively provided on the upper fixture and the upper positioning unit; A plurality of first magnetic blocks are installed in the first mounting holes in a one-to-one correspondence, and the bottom surfaces of the first magnetic blocks are in the same plane as the bottom surfaces of the upper clamp and the upper positioning unit; A lower clamp, the lower clamp is frame-shaped and corresponds to the upper clamp; A plurality of lower positioning units are installed at intervals inside the lower fixture, and the lower positioning units correspond to the upper positioning units; A plurality of second mounting holes are respectively formed on the lower fixture and the lower positioning unit; A plurality of second magnetic blocks are installed in the second mounting holes in a one-to-one correspondence, and the top surfaces of the second magnetic blocks are in the same plane as the top surfaces of the lower clamp and the lower positioning unit.

2. The magnetic clamping fixture according to claim 1, characterized in that: The upper positioning unit comprises: A plurality of upper positioning bars, each of which is provided with a plurality of positioning holes spaced apart along its length, wherein the positioning holes are grouped in pairs; A plurality of upper pressing strips are respectively located on both sides of the upper positioning strip, the upper pressing strips are grouped in pairs, and each group of the upper pressing strips corresponds to a group of the positioning holes.

3. The magnetic clamping fixture according to claim 2, characterized in that: The center line of the upper pressing strip corresponds to the center of the positioning hole.

4. The magnetic clamping fixture according to claim 3, characterized in that: The lower positioning unit comprises: A plurality of lower positioning plates are installed at intervals inside the lower fixture, and a groove is provided inside the lower positioning plates; A plurality of lower positioning bars are installed at intervals inside the lower fixture, and the lower positioning plate is located between two lower positioning plates; A plurality of positioning seats are installed on the lower positioning bar at intervals, and the positioning seats correspond to the positioning holes.

5. The magnetic clamping fixture according to claim 4, characterized in that: The outer sides of the upper clamp and the lower clamp are both provided with handles.

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